Flash player 10 写本地文件导出CSV

必须将编译器版本设为10.0.0以上，设置如下
FlexBuilder：

Flex项目- 右键 - Properties -flex compiler - required flash player version
Flex类库项目- 右键 - Properties - flex library compiler - additional compiler aguments： [b]--target-player=10.0.0[/b]


命令行:

mxmlc -target-player 10.0.0
compc -target-player 10.0.0

---

			private var fr:FileReference;


			//called when the user clicks the load file button
			private function saveFile(data:Object, fileName:String):void {
				//create the FileReference instance
				fr=new FileReference();
				//listen for the file has been saved
				fr.addEventListener(Event.COMPLETE, onFileSave);
				//listen for when then cancel out of the save dialog
				fr.addEventListener(Event.CANCEL,onCancel);
				//listen for any errors that occur while writing the file
				fr.addEventListener(IOErrorEvent.IO_ERROR, onSaveError);
				//open a native save file dialog, using the default file name
				fr.save(data, fileName)
			}

			/***** File Save Event Handlers ******/

			//called once the file has been saved
			private function onFileSave(e:Event):void {
				trace("File Saved");

			}


			private function onCancel(e:Event):void {
				trace("File save select canceled.");
				fr=null;
			}


			private function onSaveError(e:IOErrorEvent):void {
				trace("Error Saving File : " + e.text);
				fr=null;

			}

			private function export():void {
				var csv:CSV=new CSV();
				csv.embededHeader=false
				 csv.header=['label 1', 'label 2', '姓名', 'label 4']
				   csv.addRecordSet( ['1','b','c','k'] )
				 csv.addRecordSet( ['0','b','g','d'], -1 ) 
				csv.encode()
				trace( 'Is string: ' + (csv.data is String) + '\r' + csv.data );
				var g:String=csv.data + "";
                                //解决中文问题
				var b:ByteArray=new ByteArray();
				b.writeMultiByte(g, "GBK");
				trace("length = " + b.length);
				trace("bytesAvailable = " + b.bytesAvailable);
				trace("position = " + b.position);
				b.position=0;
				saveFile(b, "Export.csv");
			}

封装了一个工具类

package com.nsn.utils {
	import flash.events.Event;
	import flash.events.IOErrorEvent;
	import flash.net.FileReference;

	public class FileUtils {
		public function FileUtils() {
		}
		private var fr:FileReference;
		//保存成功回调函数
		private var onDoneCallback:Function;
		//IOError 回调函数
		private var onErrorCallback:Function;
		//取消保存回调函数
		private var onCancelCallback:Function;
		/**
		 * 保存文件
		 * @param data 要保存的数据
		 * @param fileName 文件名称
		 * @param onDone 保存成功回调函数
		 * @param onError IOError 回调函数
		 * @param onCancel 取消保存回调函数
		 * 
		 * 示例：
		 * <code>
		 * 	   FileUtils.save(...);
		 * </code>
		 */
		public static function save(data:Object, fileName:String, onDone:Function=null,  onError:Function=null, onCancel:Function=null):void {
			new FileUtils().saveFile(data, fileName, onDone, onError, onCancel);
		}
		//called when the user clicks the load file button
		public function saveFile(data:Object, fileName:String, onDone:Function=null,  onError:Function=null, onCancel:Function=null):void {
			onDoneCallback = onDone;
			onErrorCallback = onError;
			onCancelCallback = onCancel;
			//create the FileReference instance
			fr=new FileReference();
			//listen for the file has been saved
			fr.addEventListener(Event.COMPLETE, onFileSave);
			//listen for when then cancel out of the save dialog
			fr.addEventListener(Event.CANCEL,onCancel);
			//listen for any errors that occur while writing the file
			fr.addEventListener(IOErrorEvent.IO_ERROR, onSaveError);
			//open a native save file dialog, using the default file name
			fr.save(data, fileName)
		}

		/***** File Save Event Handlers ******/

		//called once the file has been saved
		private function onFileSave(e:Event):void {
			trace("File Saved");
			fr=null;
			if(onDoneCallback != null){
				onDoneCallback(e);
			}
			onDoneCallback = null;
		}

		//called if the user cancels out of the file save dialog
		private function onCancel(e:Event):void {
			trace("File save select canceled.");
			fr=null;
			if(onCancelCallback != null){
				onCancelCallback(e);
			}
			onCancelCallback = null;
		}

		//called if an error occurs while saving the file
		private function onSaveError(e:IOErrorEvent):void {
			trace("Error Saving File : " + e.text);
			fr=null;
			if(onErrorCallback != null){
				onErrorCallback(e);
			}
			onErrorCallback = null;
		}
	}
}